On the possibility of detecting ultra-short period exoplanets with LISA

Autor:	Wong, Kaze W. K., Berti, Emanuele, Gabella, William E., Holley-Bockelmann, Kelly
Rok vydání:	2018
Předmět:	Astrophysics - Earth and Planetary Astrophysics General Relativity and Quantum Cosmology
Druh dokumentu:	Working Paper
DOI:	10.1093/mnrasl/sly208
Popis:	Cunha et al. (2018) recently reexamined the possibility of detecting gravitational waves from exoplanets, claiming that three ultra-short period systems would be observable by LISA. We revisit their analysis and conclude that the currently known exoplanetary systems are unlikely to be detectable, even assuming a LISA observation time $T_{\rm obs}=4$ yrs. Conclusive statements on the detectability of one of these systems, GP Com b, will require better knowledge of the system's properties, as well as more careful modeling of both LISA's response and the galactic confusion noise. Still, the possibility of exoplanet detection with LISA is interesting enough to warrant further study, as gravitational waves could yield dynamical properties that are difficult to constrain with electromagnetic observations. Comment: 4 pages, 1 figure, 2 tables, revised in response to referee's comments and accepted in MNRAS
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1808.07055 Zobrazit plný text záznamu View this record from Arxiv